// Copyright 2016 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef MEDIA_REMOTING_REMOTING_CDM_FACTORY_H_
#define MEDIA_REMOTING_REMOTING_CDM_FACTORY_H_

#include "base/memory/weak_ptr.h"
#include "media/base/cdm_factory.h"
#include "media/mojo/interfaces/remoting.mojom.h"
#include "media/remoting/remoting_cdm_controller.h"
#include "media/remoting/remoting_sink_observer.h"

namespace media {

// TODO(xjz): Merge this with Eric's implementation.
class RemotingCdmFactory : public CdmFactory {
public:
    // |remoter_factory| is expected to outlive this class.
    // |sink_observer| monitors the remoting sink availablity, which is used to
    // initialize RemotingSourceImpl when created to avoid possible delay of
    // OnSinkAvailable() call from browser.
    RemotingCdmFactory(std::unique_ptr<CdmFactory> default_cdm_factory,
        mojom::RemoterFactory* remoter_factory,
        std::unique_ptr<RemotingSinkObserver> sink_observer);
    ~RemotingCdmFactory() override;

    void Create(const std::string& key_system,
        const GURL& security_origin,
        const CdmConfig& cdm_config,
        const SessionMessageCB& session_message_cb,
        const SessionClosedCB& session_closed_cb,
        const SessionKeysChangeCB& session_keys_change_cb,
        const SessionExpirationUpdateCB& session_expiration_update_cb,
        const CdmCreatedCB& cdm_created_cb) override;

private:
    std::unique_ptr<RemotingCdmController> CreateRemotingCdmController();
    void CreateCdm(const std::string& key_system,
        const GURL& security_origin,
        const CdmConfig& cdm_config,
        const SessionMessageCB& session_message_cb,
        const SessionClosedCB& session_closed_cb,
        const SessionKeysChangeCB& session_keys_change_cb,
        const SessionExpirationUpdateCB& session_expiration_update_cb,
        const CdmCreatedCB& cdm_created_cb,
        std::unique_ptr<RemotingCdmController> remoting_cdm_controller,
        bool is_remoting);

    const std::unique_ptr<CdmFactory> default_cdm_factory_;
    mojom::RemoterFactory* const remoter_factory_; // Outlives this class.
    std::unique_ptr<RemotingSinkObserver> sink_observer_;
    base::WeakPtrFactory<RemotingCdmFactory> weak_factory_;

    DISALLOW_COPY_AND_ASSIGN(RemotingCdmFactory);
};

} // namespace media

#endif // MEDIA_REMOTING_REMOTING_CDM_FACTORY_H_
